Solar panels are made up of smaller units called solar cells.

板由更小单位构成， 称为电池。

And finally, there's our electric tram, part from solar cells.

最后，还有我们电动有轨电车，由电池供电。

There's an issue with one of the lunar Lander's solar cells.

月球着陆器其中一个电池存在问题。

Typically, silicon solar cells are between 16 and 18 percent efficient.

一般而言，硅电池效在16%至18%之间。

The advantage of the perovskite solar cell is that it can be lightweight and flexible.

钙钛矿制成电池，其优在于：质量很轻，灵活度高。

More important are photovoltaic solar cells, a rival technology that converts sunlight directly to electricity.

更重要是光电电池，它是一种关键技术直接将光转化成电力。

Meanwhile, solar cells are getting better, cheaper, and are competing with electricity from the grid.

与此同时，电池正 变得越来越高效，经济，而且正和输电网进行竞争。

Scientists worked to create solar cells far more efficient than those currently available to homeowners.

科学们努力制造一种新电池，效率远远高于目前电池。

Researchers tacked flexible solar cells to it, so it can charge on the go.

电池上附有软电池，可以边走边充电。

But cheap carbon-based solar cells could cover large surfaces - compensating for their low efficiency.

不过廉价碳电池覆盖更大面积，这就弥补了低效率这个缺点。

When they reach the edge, they hit tiny solar cells that convert them into electricity.

因为这种板捕捉了某些光。

It takes about seven tons of this material to make 1 million watts of solar cells.

7吨这样材料大约制造可储存100万瓦特电池。

The progress of the other main kind of solar technology, photovoltaic (PV) solar cells, looks stronger.

另一项主流科技，光伏发电板进展顺利，前景广阔。

The team created a thin solar cell they can attach to the body of a cockroach.

该团队发明了一种可以附在蟑螂身上薄膜电池。

Oxford PV, a British company, is bringing some of the first perovskite solar cells to market.

英国牛津光伏公司将首批钙钛矿型电池推向市场。

And it has a feature you won't yet find on the Apple Watch: solar cells.

电池。

It only takes 35 kilograms of this material to make the same million watts of solar cells.

只需要35公斤这种材料就可以制造出同样大小电池。

Now watch what happens when we start switching that laser between different solar cells on the robot.

现在我们开始把这个激光点移到不同电池上面。

More-efficient solar cells do exist, but they are used mainly on satellites, due to their high cost.

更高效电池确实存在，但因为成本高，主要于卫星。

And, of course, it's the first satellite to go beyond the orbit of Jupiter on solar cells.

当然，这也是第一次 使电池飞跃木星轨道航天器。